/Engine/Source/Runtime/Engine/Classes/Kismet/KismetArrayLibrary.h
Tests if IndexToTest is valid, i.e. greater than or equal to zero, and less than the number of elements in TargetArray.
True if theIndexis Valid, i.e. greater than or equal to zero, and less than the number of elements in TargetArray.
static bool Array_IsValidIndex ( const [TArray](API\Runtime\Core\Containers\TArray)< int32 > & TargetArray, int32 IndexToTest )